CN106482242A - Replace shape multi-connected machine off-premises station and its control method - Google Patents
Replace shape multi-connected machine off-premises station and its control method Download PDFInfo
- Publication number
- CN106482242A CN106482242A CN201510548124.8A CN201510548124A CN106482242A CN 106482242 A CN106482242 A CN 106482242A CN 201510548124 A CN201510548124 A CN 201510548124A CN 106482242 A CN106482242 A CN 106482242A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure value
- liquid pipe
- expansion valve
- reading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—Arrangement or mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention provides a kind of replacement shape multi-gang air-conditioner off-premises station, including liquid pipe, trachea and cross valve, it is provided with electric expansion valve at described indoor set in described liquid pipe, also include high-pressure control device, pressure transducer and pressure switch, described high-pressure control device is parallel on described electric expansion valve, described pressure transducer is arranged in described liquid pipe, between described electric expansion valve and described indoor set, described pressure switch is arranged on described trachea, between described cross valve and described indoor set.Replacement shape multi-connected machine off-premises station and its control method that the present invention provides; by pressure protective device is increased on existing system; ensure in the case of replacing coolant; the loine pressure of existing system is in the range of compression resistance; and increase active carbon filter; coolant in original system, lubricating oil etc. are filtered and can normally be run it is ensured that changing system after coolant.
Description
Technical field
The invention belongs to air-conditioning equipment field, more particularly, to a kind of replacement shape multi-connected machine off-premises station and its control
Method processed.
Background technology
Nowadays, first generation air-conditioning has been faced with superseded problem, but if removed old air-conditioning,
Not only result in the economic loss of user, and after removing, stacking of air-conditioning etc. can produce pollution to environment
Problem, therefore, directly first generation air-conditioning is carried out with technology innovation is best solution.
Content of the invention
Therefore, the present invention provides one kind to install pressure protective device additional on original air-conditioner outdoor unit, effectively
The replacement shape multi-connected machine off-premises station of reduction economy and environmental problem and its control method.
A kind of replacement shape multi-gang air-conditioner off-premises station, including liquid pipe, trachea and cross valve, described liquid pipe
It is provided with electric expansion valve at upper close described indoor set, also include high-pressure control device, pressure sensing
Device and pressure switch, described high-pressure control device is parallel on described electric expansion valve, described pressure
Force transducer is arranged in described liquid pipe, between described electric expansion valve and described indoor set, described pressure
Power switch is arranged on described trachea, between described cross valve and described indoor set.
Also include active carbon filter, described active carbon filter is arranged in described liquid pipe, described pressure
Between force transducer and described indoor set.
Described high-pressure control device includes the check valve being arranged in series and electromagnetic valve, and with described electromagnetic valve
Outlet is arranged at described electric expansion valve two ends near the mode of described indoor set.
A kind of control method using above-mentioned replacement shape multi-gang air-conditioner off-premises station, including：
Initialization system pressure margin value, determines liquid pipe control according to the resistance to pressure pressure of existing existing system pipeline
Pressure value；
Set described electronic expansion valve controls aperture；
In refrigeration mode, read in real time the reading of described pressure transducer, and relatively described reading and
Described liquid pipe control pressure value；
If described reading be less than described liquid pipe control pressure value, fully open described electric expansion valve and
Described electromagnetic valve；
If described reading is more than described liquid pipe control pressure value, reduce described electronic expansion valve opening,
The more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value.
If being more than described liquid pipe control pressure value in described reading, reduce described electronic expansion valve opening,
After the more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value, if the aperture of described electric expansion valve
Less than described electronic expansion valve controls aperture, and described reading is still greater than described liquid pipe control pressure value,
Then close described electromagnetic valve, the more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value.
If the aperture of described electric expansion valve is less than described electronic expansion valve controls aperture, and described reading
Still greater than described liquid pipe control pressure value, then close described electromagnetic valve, the more described reading of compound ratio of laying equal stress on and
After described liquid pipe control pressure value, if described reading is less than described liquid pipe control pressure value, increase institute
State the aperture of electric expansion valve, if described reading is less than described liquid pipe control pressure value, reduce described
The aperture of electric expansion valve.
A kind of control method using above-mentioned replacement shape multi-gang air-conditioner off-premises station, including：
Determine the pressure pressure value of existing pipeline；
Measure the pressure value at described pressure switch in real time；
In heating mode, the relatively described existing pressure pressure value of pipeline and described pressure value；
If described pressure value is more than the pressure pressure value of described existing pipeline, described pressure switch controls institute
State off-premises station to shut down；
If described pressure value is equal to the pressure pressure value of described existing pipeline, described pressure switch keeps institute
State off-premises station working condition；
If described pressure value is less than the pressure pressure value of described existing pipeline, described pressure switch controls institute
State off-premises station normal work.
Replacement shape multi-connected machine off-premises station and its control method that the present invention provides, by existing system
Upper increase pressure protective device is it is ensured that in the case of replacing coolant, the loine pressure of existing system exists
In the range of compression resistance, and increase active carbon filter, the coolant in original system, lubricating oil etc. are entered
Row filters it is ensured that system can normally be run after changing coolant.
Brief description
Fig. 1 is the structural representation of the replacement shape multi-connected machine off-premises station that the present invention provides；
Specific embodiment
Below by specific embodiment and combine accompanying drawing to describe the present invention in detail.
Replacement shape multi-gang air-conditioner off-premises station as shown in Figure 1, including liquid pipe 1, trachea 2 and four-way
Valve 3, described liquid pipe 1 is provided with electric expansion valve 11 at described indoor set, also includes high pressure
Control device 12, pressure transducer 13 and pressure switch 21, described high-pressure control device 12 is in parallel
On described electric expansion valve 11, described pressure transducer 13 is arranged in described liquid pipe 1,
Between described electric expansion valve 11 and described indoor set, described pressure switch 21 is arranged at described trachea
On 2, between described cross valve 3 and described indoor set.
Also include active carbon filter 14, described active carbon filter 14 is arranged in described liquid pipe 1,
Between described pressure transducer 13 and described indoor set.
Described high-pressure control device 12 includes check valve and the electromagnetic valve being arranged in series, and with described electromagnetism
Valve outlet port is arranged at described electric expansion valve 11 two ends near the mode of described indoor set.
A kind of control method using above-mentioned replacement shape multi-gang air-conditioner off-premises station, including：
According to the resistance to pressure pressure of existing existing system pipeline, initialization system pressure margin value, determines that liquid pipe 1 is controlled
Pressing pressure value；
Set described electric expansion valve 11 and control aperture；
In refrigeration mode, read the reading of described pressure transducer 13 in real time, and relatively described reading
With described liquid pipe 1 control pressure value；
If described reading is less than described liquid pipe 1 control pressure value, fully open described electric expansion valve
11 and described electromagnetic valve；
If described reading is more than described liquid pipe 1 control pressure value, reduces described electric expansion valve 11 and open
Degree, the more described reading of compound ratio of laying equal stress on and described liquid pipe 1 control pressure value.
Wherein system pressure margin value is empirically determined.
Described electric expansion valve 11 controls the half that aperture is the normal aperture of described electric expansion valve 11.
If being more than described liquid pipe 1 control pressure value in described reading, reduce described electric expansion valve 11
After aperture, the more described reading of compound ratio of laying equal stress on and described liquid pipe 1 control pressure value, if described electronic expansion
The aperture of valve 11 is less than described electric expansion valve 11 and controls aperture, and described reading is still greater than described liquid
Pipe 1 control pressure value, then close described electromagnetic valve, the more described reading of compound ratio of laying equal stress on and described liquid pipe 1
Control pressure value.
If the aperture of described electric expansion valve 11 is less than described electric expansion valve 11 controls aperture, and institute
State reading still greater than described liquid pipe 1 control pressure value, then close described electromagnetic valve, compound ratio of laying equal stress on is compared with institute
After stating reading and described liquid pipe 1 control pressure value, if described reading is less than described liquid pipe 1 control pressure
Value, then increase the aperture of described electric expansion valve 11, if described reading is less than described liquid pipe 1 and controls pressure
Force value, then reduce the aperture of described electric expansion valve 11.
A kind of control method using above-mentioned replacement shape multi-gang air-conditioner off-premises station, including：
Determine the pressure pressure value of existing pipeline；
Measure the pressure value at described pressure switch 21 in real time；
In heating mode, the relatively described existing pressure pressure value of pipeline and described pressure value；
If described pressure value is more than the pressure pressure value of described existing pipeline, described pressure switch 21 controls
Described off-premises station is shut down；
If described pressure value is equal to the pressure pressure value of described existing pipeline, described pressure switch 21 keeps
Described off-premises station working condition；
If described pressure value is less than the pressure pressure value of described existing pipeline, described pressure switch 21 controls
Described off-premises station normal work.
In heating mode, the value because of pressure transducer Pd when system runs well is respectively less than A, meets
The resistance to pressure request of former pipeline, in order to ensure the safety of system, only need to select the pressure that a working value is A
Switch, pressure value described in real-time detection, if described pressure value is more than or equal to pressure switch working value,
Pressure switch state is to disconnect, system-down.If described pressure value is less than pressure switch working value,
Pressure switch state is logical, and system is normally run.
Replacement shape multi-connected machine off-premises station and its control method that the present invention provides, by existing system
Upper increase pressure protective device is it is ensured that in the case of replacing coolant, the loine pressure of existing system exists
In the range of compression resistance, and increase active carbon filter 14, to the coolant in original system, lubricating oil etc.
Filtered and can normally be run it is ensured that changing system after coolant.
It is only the preferred embodiment of the present invention by the above it is noted that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, some changing can also be made
Enter and retouch, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of replacement shape multi-gang air-conditioner off-premises station, including liquid pipe, trachea and cross valve, described liquid
Be provided with electric expansion valve at the described indoor set on pipe it is characterised in that：Also include high voltage control
Device, pressure transducer and pressure switch, it is swollen that described high-pressure control device is parallel to described electronics
On swollen valve, described pressure transducer is arranged in described liquid pipe, described electric expansion valve and described interior
Between machine, described pressure switch is arranged on described trachea, between described cross valve and described indoor set.
2. according to claim 1 replacement shape multi-gang air-conditioner off-premises station it is characterised in that：Also
Including active carbon filter, described active carbon filter is arranged in described liquid pipe, described pressure sensing
Between device and described indoor set.
3. according to claim 1 replacement shape multi-gang air-conditioner off-premises station it is characterised in that：Institute
State check valve and the electromagnetic valve that high-pressure control device includes being arranged in series, and leaned on described electromagnetic valve outlet
The mode of closely described indoor set is arranged at described electric expansion valve two ends.
4. the controlling party of the replacement shape multi-gang air-conditioner off-premises station described in a kind of utilization claim 1 to 3
Method it is characterised in that：Including：
Initialization system pressure margin value, determines liquid pipe control according to the resistance to pressure pressure of existing existing system pipeline
Pressure value；
Set described electronic expansion valve controls aperture；
In refrigeration mode, read in real time the reading of described pressure transducer, and relatively described reading and
Described liquid pipe control pressure value；
If described reading be less than described liquid pipe control pressure value, fully open described electric expansion valve and
Described electromagnetic valve；
If described reading is more than described liquid pipe control pressure value, reduce described electronic expansion valve opening,
The more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value.
5. control method according to claim 4 it is characterised in that：If being more than in described reading
Described liquid pipe control pressure value, then reduce described electronic expansion valve opening, the more described reading of compound ratio of laying equal stress on
After described liquid pipe control pressure value, if the aperture of described electric expansion valve is less than described electric expansion valve
Control aperture, and described reading still greater than described liquid pipe control pressure value, then close described electromagnetic valve,
The more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value.
6. control method according to claim 5 it is characterised in that：If described electric expansion valve
Aperture be less than described electronic expansion valve controls aperture, and described reading still greater than described liquid pipe control pressure
Force value, then close described electromagnetic valve, after the more described reading of compound ratio of laying equal stress on and described liquid pipe control pressure value,
If described reading is less than described liquid pipe control pressure value, increase the aperture of described electric expansion valve, if
Described reading is less than described liquid pipe control pressure value, then reduce the aperture of described electric expansion valve.
7. the controlling party of the replacement shape multi-gang air-conditioner off-premises station described in a kind of utilization claim 1 to 3
Method it is characterised in that：Including：
Determine the pressure pressure value of existing pipeline；
Measure the pressure value at described exhaust outlet of compressor in real time；
In heating mode, the relatively described existing pressure pressure value of pipeline and described pressure value；
If described pressure value is more than the pressure pressure value of described existing pipeline, described pressure switch controls institute
State off-premises station to shut down；
If described pressure value is equal to the pressure pressure value of described existing pipeline, described pressure switch keeps institute
State off-premises station working condition；
If described pressure value is less than the pressure pressure value of described existing pipeline, described pressure switch controls institute
State off-premises station normal work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548124.8A CN106482242B (en) | 2015-08-31 | 2015-08-31 | Replaced type multi-connected machine outdoor unit and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548124.8A CN106482242B (en) | 2015-08-31 | 2015-08-31 | Replaced type multi-connected machine outdoor unit and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106482242A true CN106482242A (en) | 2017-03-08 |
| CN106482242B CN106482242B (en) | 2019-10-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510548124.8A Active CN106482242B (en) | 2015-08-31 | 2015-08-31 | Replaced type multi-connected machine outdoor unit and its control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106482242B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992113A (en) * | 2017-12-19 | 2018-05-04 | 广东美的制冷设备有限公司 | Pressure limiting method, pressure limiting device and temperature control device |
| CN111174336A (en) * | 2020-01-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN114151935A (en) * | 2021-12-07 | 2022-03-08 | 青岛海信日立空调系统有限公司 | Air conditioning system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158399A (en) * | 1995-12-29 | 1997-09-03 | 三洋电机株式会社 | Air conditioner |
| CN1952537A (en) * | 2005-10-17 | 2007-04-25 | 海尔集团公司 | Refrigerant circulation control device and method for multi-connected air conditioner |
| CN2901189Y (en) * | 2006-04-18 | 2007-05-16 | 广东美的电器股份有限公司 | Cold medium regulator for air conditioner |
| JP2009133557A (en) * | 2007-11-30 | 2009-06-18 | Daikin Ind Ltd | Air-conditioning system |
| CN102353116A (en) * | 2011-07-27 | 2012-02-15 | 宁波奥克斯电气有限公司 | Explosion-proof control method of multi-connected air conditioning unit at runtime |
| CN102635926A (en) * | 2012-04-26 | 2012-08-15 | 青岛海尔空调电子有限公司 | Air conditioning system and pressure adjusting method for same |
| CN203687289U (en) * | 2013-12-02 | 2014-07-02 | 国家电网公司 | Computer room air conditioner protection stopping self-diagnosing self-starting device |
-
2015
- 2015-08-31 CN CN201510548124.8A patent/CN106482242B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158399A (en) * | 1995-12-29 | 1997-09-03 | 三洋电机株式会社 | Air conditioner |
| CN1952537A (en) * | 2005-10-17 | 2007-04-25 | 海尔集团公司 | Refrigerant circulation control device and method for multi-connected air conditioner |
| CN2901189Y (en) * | 2006-04-18 | 2007-05-16 | 广东美的电器股份有限公司 | Cold medium regulator for air conditioner |
| JP2009133557A (en) * | 2007-11-30 | 2009-06-18 | Daikin Ind Ltd | Air-conditioning system |
| CN102353116A (en) * | 2011-07-27 | 2012-02-15 | 宁波奥克斯电气有限公司 | Explosion-proof control method of multi-connected air conditioning unit at runtime |
| CN102635926A (en) * | 2012-04-26 | 2012-08-15 | 青岛海尔空调电子有限公司 | Air conditioning system and pressure adjusting method for same |
| CN203687289U (en) * | 2013-12-02 | 2014-07-02 | 国家电网公司 | Computer room air conditioner protection stopping self-diagnosing self-starting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992113A (en) * | 2017-12-19 | 2018-05-04 | 广东美的制冷设备有限公司 | Pressure limiting method, pressure limiting device and temperature control device |
| CN111174336A (en) * | 2020-01-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN111174336B (en) * | 2020-01-09 | 2024-04-05 | 珠海格力电器股份有限公司 | Air conditioner external unit, air conditioner and air conditioner control method |
| CN114151935A (en) * | 2021-12-07 | 2022-03-08 | 青岛海信日立空调系统有限公司 | Air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106482242B (en) | 2019-10-22 |
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